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Accounts Receivable, Net of Allowance, and Contract Assets and Liabilities (Tables)
 6 Months Ended
Jun. 30, 2024
Receivables [Abstract]  
Schedule of Accounts Receivable, Net of Allowance, and Contract Assets
The following table provides details of accounts receivable, net of allowance, and contract assets (together, “accounts receivable, net”) as of the dates indicated (in millions):
June 30,
2024		December 31,
2023
Contract billings$1,361.9 $1,385.2 
Less allowance(19.9)(15.1)
Accounts receivable, net of allowance$1,342.0 $1,370.1 
Retainage$324.9 $356.4 
Unbilled receivables1,208.6 1,400.0 
Contract assets$1,533.5 $1,756.4